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Welcome to J3 Company, the Heavy Civil Experts.

Serving South, Central, and West Texas for over 20 years!
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Shape Divider - Style mountains
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J3 Project Highlight.
​Port of San Antonio

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At J3, we are proud to have partnered with the Port of San Antonio on this $22 million project to improve the drainage on the old Kelly Airforce Base. The site had a contamination problem due to operations in the past, which had affected the soil and groundwater. The US Air Force and their decontamination team were overseeing this project...